import axios, { AxiosRequestConfig } from 'axios'
import {
  ElNotification,
  ElMessageBox,
  ElMessage,
  ElLoading
} from 'element-plus'
import { getToken } from '@/utils/auth'
import errorCode from '@/utils/errorCode'
import { tansParams, blobValidate } from '@/utils/ruoyi'
import cache from '@/plugins/cache'
import { saveAs } from 'file-saver'
import useUserStore from '@/store/modules/user'

let downloadLoadingInstance: ReturnType<typeof ElLoading.service>
// 是否显示重新登录
export const isRelogin = { show: false }

// @ts-ignore
axios.defaults.headers['Content-Type'] = 'application/json;charset=utf-8'
// 创建axios实例
const service = axios.create({
  // axios中请求配置有baseURL选项，表示请求URL公共部分
  baseURL: import.meta.env.VITE_APP_BASE_API,
  // 超时
  timeout: 3 * 60000
})

// request拦截器
service.interceptors.request.use(
  config => {
    // 是否需要设置 token
    const isToken = (config.headers || {}).isToken === false
    // 是否需要防止数据重复提交
    const isRepeatSubmit = (config.headers || {}).repeatSubmit === false
    if (getToken() && !isToken) {
      // @ts-ignore
      config.headers['Authorization'] = 'Bearer ' + getToken() // 让每个请求携带自定义token 请根据实际情况自行修改
    }
    // get请求映射params参数
    if (config.method === 'get' && config.params) {
      let url = config.url + '?' + tansParams(config.params)
      url = url.slice(0, -1)
      config.params = {}
      config.url = url
    }
    if (
      !isRepeatSubmit &&
      (config.method === 'post' || config.method === 'put')
    ) {
      const requestObj = {
        url: config.url,
        data:
          typeof config.data === 'object'
            ? JSON.stringify(config.data)
            : config.data,
        time: new Date().getTime()
      }
      const sessionObj = cache.session.getJSON('sessionObj')
      if (
        sessionObj === undefined ||
        sessionObj === null ||
        sessionObj === ''
      ) {
        cache.session.setJSON('sessionObj', requestObj)
      } else {
        // const s_url = sessionObj.url // 请求地址
        // const s_data = sessionObj.data // 请求数据
        // const s_time = sessionObj.time // 请求时间
        // const interval = 1000 // 间隔时间(ms)，小于此时间视为重复提交
        // if (
        //   s_data === requestObj.data &&
        //   requestObj.time - s_time < interval &&
        //   s_url === requestObj.url
        // ) {
        //   const message = '数据正在处理，请勿重复提交'
        //   console.warn(`[${s_url}]: ` + message)
        //   return Promise.reject(new Error(message))
        // } else {
        //   cache.session.setJSON('sessionObj', requestObj)
        // }
      }
    }
    return config
  },
  error => {
    console.log(error, '44444444444444444444444')
    Promise.reject(error)
  }
)

// 响应拦截器
service.interceptors.response.use(
  res => {
    // 未设置状态码则默认成功状态
    const code = res.data.code || 200
    // 获取错误信息
    // @ts-ignore
    const msg = errorCode[code] || res.data.msg || errorCode['default']
    // 二进制数据则直接返回
    if (
      res.request.responseType === 'blob' ||
      res.request.responseType === 'arraybuffer'
    ) {
      return res.data
    }
    if (code === 401) {
      if (!isRelogin.show) {
        isRelogin.show = true
        ElMessageBox.confirm(
          '登录状态已过期，您可以继续留在该页面，或者重新登录',
          '系统提示',
          {
            confirmButtonText: '重新登录',
            cancelButtonText: '取消',
            type: 'warning'
          }
        )
          .then(() => {
            isRelogin.show = false
            useUserStore()
              .logOut()
              .then(() => {
                location.href = '/index'
              })
          })
          .catch(() => {
            isRelogin.show = false
          })
      }
      return Promise.reject('无效的会话，或者会话已过期，请重新登录。')
    } else if (code === 500) {
      if (res.config.url != '/system/frequent/insert') {
        ElMessage({
          showClose: true,
          message: msg,
          type: 'error',
          duration: 10000,
          dangerouslyUseHTMLString: true
        })
      }

      return Promise.reject(new Error(msg))
    } else if (code === 601) {
      ElMessage({ message: msg, type: 'warning' })
      return Promise.reject(new Error(msg))
    } else if (code !== 200) {
      ElNotification.error({ title: msg })
      return Promise.reject('error')
    } else {
      return Promise.resolve(res.data)
    }
  },
  error => {
    console.log('err' + error)
    let { message } = error
    if (message == 'Network Error') {
      message = '后端接口连接异常'
    } else if (message.includes('timeout')) {
      message = '系统接口请求超时'
    } else if (message.includes('Request failed with status code')) {
      message = '系统接口' + message.substr(message.length - 3) + '异常'
    }
    ElMessage({ message: message, type: 'error', duration: 5 * 1000 })
    return Promise.reject(error)
  }
)

// 通用下载方法
export function download(
  url: string,
  params: any,
  filename: string | undefined,
  config: AxiosRequestConfig<any> | undefined
) {
  downloadLoadingInstance = ElLoading.service({
    text: '正在下载数据，请稍候',
    background: 'rgba(0, 0, 0, 0.7)'
  })
  return service
    .post(url, params, {
      transformRequest: [
        params => {
          return tansParams(params)
        }
      ],
      headers: { 'Content-Type': 'application/json;charset=UTF-8' },
      responseType: 'blob',
      ...config
    })
    .then(async data => {
      const isLogin = await blobValidate(data)
      if (isLogin) {
        // @ts-ignore
        const blob = new Blob([data])
        saveAs(blob, filename)
      } else {
        // @ts-ignore
        const resText = await data.text()
        const rspObj = JSON.parse(resText)
        // @ts-ignore
        const errMsg =
          errorCode[rspObj.code] || rspObj.msg || errorCode['default']
        ElMessage.error(errMsg)
      }
      downloadLoadingInstance.close()
    })
    .catch(r => {
      console.error(r)
      ElMessage.error('下载文件出现错误，请联系管理员！')
      downloadLoadingInstance.close()
    })
}

// 通用下载方法
export async function downloadFile(
  id: string,
  filename: string | undefined,
  toBlob = false
) {
  downloadLoadingInstance = ElLoading.service({
    text: '正在下载数据，请稍候',
    background: 'rgba(0, 0, 0, 0.7)'
  })
  return service
    .get('/file/fileResources/getAttachFile?fileId=' + id, {
      headers: { 'Content-Type': 'application/json;charset=UTF-8' },
      responseType: 'blob'
    })
    .then(async data => {
      // @ts-ignore
      const blob = new Blob([data])
      if (toBlob) {
        saveAs(blob, filename)
        downloadLoadingInstance.close()
      } else {
        const reader = new FileReader()
        reader.onload = e => {
          const result: any = e.target?.result
          try {
            const res = JSON.parse(result)
            if (res.code === 500) {
              ElMessage.error(res.msg)
              downloadLoadingInstance.close()
            } else {
              downloadFile(id, filename, true)
            }
          } catch (error) {
            console.log(error, 'error')
            downloadFile(id, filename, true)
          }
        }
        reader.readAsText(blob)
      }

      // console.log(data, 'dataaaaaa')
      // if (data.code && data.code === 500) {
      //   downloadLoadingInstance.close()
      //   ElMessage.error(data.msg)
      // } else {
      //   const blob = new Blob([data])
      //   saveAs(blob, filename)
      //   downloadLoadingInstance.close()
      // }
    })
    .catch(r => {
      console.error(r)
      ElMessage.error('下载文件出现错误，请联系管理员！')
      downloadLoadingInstance.close()
    })
}

export default service
